/**
  * @Route("/devices/register/{latitude}/{longitude}")
  */
 public function registerTestDeviceAction($latitude, $longitude)
 {
     $doctrine = $this->getDoctrine();
     $em = $doctrine->getEntityManager();
     $device = new Device();
     $device->setLocationUpdateTimestamp(time());
     $device->setLastKnownLatitude($latitude);
     $device->setLastKnownLongitude($longitude);
     $em->persist($device);
     $em->flush();
     return new Response('Device registered with coordinates ' . $latitude . ' | ' . $longitude);
 }